GLOCK has once again exponentially expanded the choices shooters have with the introduction of the Modular Optic System (MOS) Configuration for a number of GLOCK models. In a nutshell, GLOCK engineers altered the external profile of the GLOCK slide to accept mounting plates to accommodate the different “footprints” of the popular mini reflex sights available on the market. A number of popular mini reflex sights can be mounted, including those from Trijicon, Leupold and C-More, on GLOCKs with the MOS Configuration slides.



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